Comment to "Vitamin D in psoriatic arthritis - A systematic review and meta-analysis"

Affiliations

• ¹ Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; Dietetics and Clinical Nutrition Unit, IRCCS Policlinic Hospital San Martino, 16132 Genoa, Italy. Electronic address: elena.formisano@hsanmartino.it.
• ² Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy.
• ³ Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; Dietetics and Clinical Nutrition Unit, IRCCS Policlinic Hospital San Martino, 16132 Genoa, Italy.